Key Features & Functionality
Fixed Background Suppression (BGS): This is the core technology. The sensor is preset to detect objects within a specific, fixed range (40 mm for this model) and will ignore any objects or surfaces beyond this point. This ensures stable detection of objects with varying reflectivity (e.g., from matte black to shiny white) at the same distance.

Compact and Versatile Housing: Features an extremely compact, rectangular housing that is ideal for installation in space-constrained applications. It offers multiple mounting options with integrated holes for bracket mounting or direct assembly.

Precise and Stable Detection: The fixed BGS technology guarantees a constant switching point, eliminating the need for manual adjustment and providing high reliability against fluctuating background conditions.

High Visible Light Spot: Projects a highly visible red light spot, making alignment and aiming quick and easy during installation and troubleshooting.

Fixed Cable Connection: The model suffix B410 indicates it comes with a 2 m long, PVC-jacketed fixed cable.

IO-Link Capability (Optional): Many variants in the WF2 series are available with IO-Link, a smart sensor communication protocol. While the suffix determines this, the B410 typically indicates a standard digital output, but the platform supports it.

2. Typical Applications
This sensor is perfect for applications requiring precise and close-range detection, such as:

Object Presence Detection: Verifying the presence of parts on conveyors, in assembly jigs, or at the end of a robot gripper.

End-of-Stroke Detection: Checking if a cylinder is fully extended or retracted.

Label Detection: Detecting the presence of labels on products or packaging.

Fill Level Monitoring: Checking for the presence of items in a tray or container at a specific height.

Replacement for Inductive Sensors: Detecting non-metallic objects where inductive sensors fail.

Technical Parameters (English)
Parameter Specification
Article Number WF2-40B410
Sensor Type Photoelectric Sensor, Diffuse Reflection with Background Suppression
Sensing Principle Diffuse reflection with fixed background suppression
Sensing Range 40 mm (fixed)
Light Source Red light
Light Type Modulated visible red light, 650 nm
Output 1 x PNP, NO (Normally Open)
Switching Frequency 1000 Hz
Response Time 0.5 ms
Housing Material Plastic (PBT)
Protection Rating IP67
Connection Fixed cable, 2 m length
Power Supply 10 ... 30 V DC
No-Load Current ≤ 25 mA
Max. Switching Current 100 mA
Short-Circuit Protection Yes
Reverse Polarity Protection Yes
Operating Temperature -30 °C ... +60 °C
Key Feature Summary:

Fixed BGS Range: Stable 40 mm detection, immune to object color and reflectivity.

Extremely Compact: Small size for space-limited installations.

Easy Alignment: Bright red light spot for visual setup.

Robust Design: IP67 rating for harsh industrial environments.

High-Speed Response: 1000 Hz switching frequency for fast processes.